Painting, then, for the reasons already assigned and insisted on, was the art demanded by the modern intellect upon its emergence from the stillness of the Middle Ages. The problem, however, even for the art of painting was not simple. The painters, following the masters of mosaic, began by setting forth the history, mythology, and legends of the Christian Church in imagery freer and more beautiful than lay within the scope of treatment by Romanesque or Byzantine art. So far their task was comparatively easy; for the idyllic grace of maternal love in the Madonna, the pathetic incidents of martyrdom, the courage of confessors, the ecstasies of celestial joy in redeemed souls, the loveliness of a pure life in modest virgins, and the dramatic episodes of sacred story, furnish a multitude of motives admirably pictorial. There was, therefore, no great obstacle upon the threshold, so long as artists gave their willing service to the Church. Yet, looking back upon this phase of painting, we are able to perceive that already the adaptation of art to Christian dogma entailed concessions on both sides. Much, on the one hand, had to be omitted from the programme offered to artistic treatment, for the reason that the fine arts could not deal with it at all. Much, on the other hand, had to be expressed by means which painting in a state of perfect freedom would repudiate. Allegorical symbols, like Prudence with two faces, and painful episodes of agony and anguish, marred her work of beauty. There was consequently a double compromise, involving a double sacrifice of something precious. The faith suffered by having its mysteries brought into the light of day, incarnated in form, and humanised. Art suffered by being forced to render intellectual abstractions to the eye through figured symbols.